Tone-arm for talking-machines.



E. PELTOVITZ.

' TONE ARM FOR TALKING MACHINES.

APPLICATION FILED 0GT.31.1911.

Patented Apr.'21, 1914.

3 SHEETSSHEET Z.

INVENTOR Edrquqd. FETEDVIF 2.,

A TTORNEYS WITNESSES:

-|"1iiiiiiiii i ii E. PELTOVITZ.

TONE ARM FOR- TALKING MAGrLINES.

APPLICATION FILED OCT. 31, 1911.

m m n m m M .L 1 Qm m ME A WP ms am Ma .r Dom m E 753 4. 2 2

- WITNESSES' EDMUND PELTOVITZ, OF EAST ORANGE, NEW JERSEY.

TONE-ARM FOR TALKING-MACHINES.

Specification of Letters Patent.

Application filed October 31, 1911.

Patented Apr. 21, 1914.

Serial No. 657,783.

To all whom it may concern:

Be it known that I, EDMUND PELTOVITZ, a citizen of the United States,residing at- East Orange, in the county of Essex and State of NewJersey, have invented certain new and useful Improvements in Tone-Armsfor Talking-Machines; and I do hereby declare the following to be afull, clear, and

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to characters of referencemarked thereon, which form a part of this specification.

This invention has reference, generally, to improvements in tone armsfor talking machines; and, the invention relates, more particularly, toa novel form of accordion-plaited stem for use with machines of thecharacter above stated and with the amplifying horns employed with suchmachine, with a View of providing a means which will permit the soundbox to be readily raised from its reproducing contact with the recordcylinder of the phonograph, or "from the record-disk of the gramop-honeor talking machine, without in the least aflecting the relatively fixedposition of the amplifying horn; and, also to provide a tone-arm whichwill swing laterally as the sound box moves along the cylinder or fromthe central portion of the disk to the outer circumferential edge of thelatter. y

The invention has for its further object to provide a simple andeffectively operating means which will modify the sound and willovercome absolutely the metallic -or squeaky sounds caused by the usualamplifying horns.

Other objects of this invention not at this time more particularlyenumerated will. be clearly understood from the following detaileddescription of the present invention.

With the various objects of the invention in view, the said inventionconsists, primarily, in the novel accordion-plaited tonearm forphonographs and talking machines embodied in the clauses of the claimwhich are appended to and which form an essen tial part of thisspecification.

The invention is clearly illustrated in the accompanying drawings, inwhich Figure 1 is a side elevation of one form of talking machine andamplifying horn, with an accordion-plaited tone-arm made according toand embodying theprinc-iples of the present invention, said Viewillustrating also in connection with the said devices, one means forsecuring the tone-arm in its operative position with relation to therecord-disk of the machine and to the amplifying horn. Fig. 2 is anenlarged top view of portions of the said accordion plaited tone-arm,said view illustrating, also, the

oscillatory relation of the parts of the said arm to each other. Fig. 3is a view similar tothat represented in said Fig. 1, showing theapplication of the accordion-plaited tone-arm to that style of talkingmachine or gramophone in which the amplifying horn is contained in thecase or box of the talking-machine. Fig. 4 is an enlarged longitudinalvertical section of the accordionplaited or bellows-portion of thetone-arm; Fig. 5 is a horizontal section of one form of support-ingbracket for the tone-arm, said section being taken on line 5-5 in saidFig. 4, looking in the direction of the arrow m, and the parts of thesupporting bracket being shown in their normal initial positions. Fig. 6is a view similar to. that represented in said Fig. 5, the parts of thesupporting-bracket being represented in their operated positions whenone of the armsections, with which the sound box is connected, isslightly raised so as to elevate the sound box above the surface of andout of contact with the record-disk or cylinder. Fig. 7 is a horizontalsection taken on line 7-7 in said Fig. 4; Fig. 8 is a transversevertical section, taken on line 88 in Fig. 5; andFig. 9 is a similarsection, taken on lin'e99 in Fig. 6, all of said views being made upon amuch larger scale.

Referring now to the several figures of v the drawings, thereference-character 1 indicates any usual form of case or box in Y whichis arranged the operating-mechanism,

in this instance that of a talking machine, 2 indicating the usualmotor-driven shaft, and 3 rotary supporting table mounted upon saidshaft, and upon which is 'removably arranged a record-disk, as 4.

The reference-character 5 indicates any suitable form of amplifying hornwhich may be arranged upon the outside of the a said case or box, asshown in Fig. 1 of the drawings, 0I'-/WhiCh may beplaced within the caseor box, as indicated in Fig. 3. The accordion-plaited tone-arm isindicated by the reference-character 6, and consists, usually, of threemembers or sections 7, 8 and 9 which are suitably connected and operatein substantially the manner to be presently more fully set forth. Thesaid illustrated in Fig.1 of the drawings, extend ing in an upwarddirection, while the elbow in the representation of the partsillustrated in said Fig. 3 extends in a downward direction, but in eachcase the small tubular end-portions of the amplifying horns are suitablyconnected with said elbows, substantially in the manner shown.

The arm-section 8 is intermediately se-.

cured and suitably connected with the respective arm-sections 7 and 9,said section 8 bein made of a-suitable non-metallic and flexi le fabric,such as leather, or the like, and consisting of a suitable number ofaccordion-like plaits, as 14, or being made in the form of a bellows,substantially as shown in the several figures of the drawings. Onemanner of connecting the end-portions of said tubular andaccordion-plaited or bellows-like arm-section 8 to the respective metalsections 7 and 9 is by means of suitably formed binding rings or bands,as 15 and16, as represented in Figs. 1, 2, 3 and 4 of the drawings. Inorder that the said accordion-plaited or bellows-like arm-section 8shall have proper rigidity or stifli'ness, and still not interfere withthe flexibility of said section, suitably formed rings 17 of metal, orother suitable material, are preferably arranged within the severalportions 18 of said section 8, substantially as shown in said Fig. 4 ofthe drawings, and the purpose of which is self-evident.

. of the drawings.

One means for operatively mounting the accordion-plaited or bellows-liketone-arm above the case or box 1 is by means of an upwardly extendingarm 19 which is rigidly secured to the side of the case or box by meansof screws 20, or other suitable fastening means, said arm 19 beingprovided at its upper end with a-ring-like support, as 21, with whichthe upwardly extending endportion of the elbow or arm-section 9 isoperatively connected, and in such a manner that the small tubular endof an amplifying horn can be connected therewith substantially in themanner represented in Fig. 1 Connected with said arm 19 is a finger 22formed with a supporting member, 23 which is provided with ascrewthreaded hole 24., and into which isscrewed the screw-threadedshank-portion 26 of a pin or screw 25. The said screw 25 is used forrigidly, securing upon said supporting member 23 a suitably formedblock, as 27, formed in one side with a vertically extending slot orgroove 28. Extending from the same side of said block, and in alinementwith said slot or groove 28, is another screw or pin 29 which isprovided with a head 30 arranged in a socket 31 with which the member orpart 32 of a second and upwardly extending supporting arm 33 isprovided. A

spring 34 which encircles the said screw or pin 29, and is arranged insaid socket 31, is

of such stiffness that the said parts are oscillatorily connected, so asto move in vertical planes with relation to each other, the springholding said parts in any one of their raised and ad]usted relations,but the block 27 being still capable of rotation upon the pin or screw25, so as not to interfere with the swinging movements of thearm-sections 7 and 8 with relation to the fixed position of thearm-section 9, as will be clearly evident. The said arm 33 has asupporting portion 35 upon which the arm-section 7 rests, substantiallyin the manner shown. To provide for the proper position of the sound box11, relatively to the record-disk, the member or part 32 of the arm 33is preferably made with a rib or projection, as 36, which normallyregisters with said slot or groove 28, as shown in Figs. 5 and 8, so asto act as a stop to prevent any downward movement of the parts in thedirection of the arrow 1 see Fig. 5; but, the said rib or projection 36readily rides out of said slot or groove 28, when the arm '33 and theparts supported thereon are raised, as clearly represented in Figs. 6and 9 of the drawings.

With the arrangement of the several devices and parts, as in Fig. 3 ofthe drawings, two arms, as 37 and 38 are provided, said arms beingrespectively secured to and connected with the said rings or hands 15and 16, at their upper end-portions, the

not be further described.

I am aware that some changes may bev made in the general arrangementsand combinations of the several devices and parts without departing fromthe scope of the present invention, as set forth in the foregoingspecification and as defined in the claims which are appended thereto.Hence I do not limit my invention to the exact arrangements andcombinations of the several devices and parts as described in the saidspecification, nor do I confine myself to the exact details of theconstruction of the said parts, as illustrated in the accompanyingdrawings.

I claim l. A tone-arm comprising a series of rigid metallic sections,and an intermediate non metallic flexible section, said section beingaccordionplaited, so as to open and close in the direction of itslongitudinal axis and also to curve to either side of said axis.

2. A tone-arm comprising a series of rigid metallic sections, and anintermediate nonmetallic flexible section, said section beingaecordion-plaited, so as to open and close' in the direction of itslongitudinal axis and also to curve to either side of said axis,combined with means for supporting said tonearm on the case of a talkingmachine or phonograph.

3. A tone-arm comprising a rigidly secured metallic arm-section uponwhich is mounted in a fixed position an amplifying horn, a secondnon-metallic flexible armsection connected with said first-mentionedarm-section, said non-metallic arm-section being accordion-plaited, soas to open and close in the direction of its longitudinal axis and alsoto curve to either side of said axis, and a third rigid metallicarm-section connected with said flexible non-metallic section, saidlast-mentioned metallic arm-section having mounted thereon a sound-box.

4. A tone-arm comprising a rigidly secured metallic arm-section uponwhich is mounted in a fixed position an amplifying horn, a secondnon-metallic flexible arm-section connected with said first-mentionedarm-section, said non-metallic arm-section being accordion-plaited, soas to open and close in the direction of its longitudinal axis and alsoto curve to either side of said axis, and a third rigid metallicarm-section connected with said flexible non-metallic section, saidlast-mentioned metallic armseetion having mounted thereon a soundbox,combined with means for supporting said tone-arm on the case of atalking machine or phonograph.

5. The combination with the case or box of a talking machine orphonograph, of an arm secured to said case or box, a finger eonnectedwith said arm, a supporting member connected with said linger, a pinextending from said supporting member, a swivelblock mounted upon saidpin, said block being formed in one side with agroove, a pin extendinglaterally from said block and in alinement with said groove, said pinbeing provided with a head, an upwardly extend.- ing supporting armprovided with a socketed member in which the head of said lastmentionedpin is arranged, and a coiled spring within said socketed-portion, saidspring encircling a portion of said last-mentioned pin, and a tone-armcarried by said arms, said tone-arm comprising a series of connectedarm-sections, one of said sections being made of a flexible material.

6. The combination with the case or box of a talking machine orphonograph, of an arm secured to said case or box, a finger connectedwith said arm, a supporting member connected with said finger, a pinextending from said supporting member, a swivel-block mounted upon saidpin, said block being formed in one side with a groove, 21. pinextending laterally from said block and in alinement with said groove,said pin being provided with a head, an upwardly extending supportingarm provided with a socketed member in which the head of saidlast-mentioned pin is arranged, and a coiled spring within said socketedportion, said spring encircling a port-ion of said last-mentioned pin,and a tone-arm carried by said arms, said tone-arm comprising a seriesof arm-sections, one of said sections being aceordion-plaited or made inthe form of a bellows.

7 The combination with the case or box of a talking machine orphonograph, of an arm secured to said case or box, a finger connectedwith said arm, a supporting member connected with said finger, a pinextending from said supporting member, a swivelblock mounted upon saidpin, said block being formed in one side with a groove, a pin extendinglaterally from said block and in alinement with said groove, said pinbeing provided with a head, an upwardly extending supporting armprovided with a socket- &- 1,094,166

spring encircling a portion of said last-men- I In testimony, that Iclaim the invention tinned pin, and a tone-arm carried by said Isetforth above I have hereunto set my 10 arms, said tone-arm comprisinga, series of I hand this 28th day of October, 1911.

metal arm-sections and an interinediately T disposed arm-section made ofa flexible fab- EDMUND PEL'I llC Silld flexible fabric arm-section beingac- 'itnesses: ('Ul'dlOll-Plilll'Gd or made 111 the form of a FREDK. C.FRAENTZEL, bellows. FREDK. H. W. F RAENTZEL.

